D.C. Mun. Regs. tit. 12, 12-I3.2
Insert the following new definition in Section 3.2 of ASHRAE 90.1 to read as follows:
airflow, minimum outdoor: the outdoor airflow provided by a ventilation system to meet requirements for indoor air quality, excluding any additional outdoor air intake to reduce or eliminate the need for mechanical cooling.
Strike the definitions of "baseline building design" and "baseline building performance" in ASHRAE 90.1 and insert new definitions in their place in the Energy Conservation Code-Commercial Provisions to read as follows:
baseline building design: a computer representation of a hypothetical design based on the proposed building project. This representation is used as the basis for calculating the baseline building performance for rating above-standard design or when using the performance rating method as an alternative path for minimum standard compliance in accordance with Section 4.2.1.1.
baseline building performance: the annual energy cost for a building design intended for use as a baseline for rating above-standard design or when using the performance rating method as an alternative path for minimum standard compliance in accordance with Section 4.2.1.1.
Insert the following new definitions in Section 3.2 of ASHRAE 90.1 in the Energy Conservation Code-Commercial Provisions to read as follows:
building project: a building, or group of buildings, and site that utilize a single submittal for a construction permit or that are within the boundary of contiguous properties under single ownership or effective control. Phased development that is permitted over a period of five years for the same building shall be considered a single project.
classroom: a space primarily used for scheduled instructional activities.
climate zone: see Section 5.1.4.
commissioning authority (CxA): an entity identified by the owner who leads, plans, schedules, and coordinates the commissioning team to implement the building commissioning process. (See commissioning (Cx) process.)
commissioning (Cx) plan: a document that outlines the organization, schedule, allocation of resources, and documentation requirements of the building commissioning process. (See commissioning (Cx) process.)
commissioning (Cx) process: a quality-focused process for enhancing the delivery of a project. The process focuses upon verifying and documenting that the facility and all of its systems and assemblies are planned, designed, installed, tested, operated, and maintained to meet the owner's project requirements. (See owner's project requirements.)
construction checklist: a form used by the contractor to verify that appropriate components are on site, ready for installation, correctly installed, and functional.
daylight area:
Strike the definition of "primary sidelighted area" and "secondary sidelighted area" under "daylight area" in ASHRAE 90.1 and the associated Figures 3.2-3 and 3.2 without replacement.
Insert a new definition of "sidelighted area" under "daylight area" in the Energy Conservation Code-Commercial Provisions to read as follows:
sidelighted area: Each sidelighted area is directly adjacent to vertical fenestration below the ceiling.
a. The sidelighted area width is the width of the vertical fenestration plus, on each side, the smaller of
1. 3 ft, or
2. the distance to any 5 ft or higher opaque vertical obstruction.
b. The sidelighted area depth is the horizontal distance perpendicular to the vertical fenestration which is the smaller of
1. 15 ft, or
2. the distance to any 5 ft or higher opaque vertical obstruction.
Insert the following new definitions in Section 3.2 of ASHRAE 90.1 in the Energy Conservation Code-Commercial Provisions to read as follows:
daylight hours: the period from 30 minutes after sunrise to 30 minutes before sunset.
densely occupied space: those spaces with a design occupant density greater than or equal to 25 people per 1000 ft2 (100 m2).
electronics: computers and accessories; monitors; printers; and other equipment, such as scanners, fax machines, electric typewriters, cell phones, telephones, answering machines, shredders, postage machines, televisions, VHS/DVD players, portable cassette/CD players with radio devices, and stereo equipment.
geothermal energy: heat extracted from the Earth's interior and used to produce electricity or mechanical power or provide thermal energy for heating buildings or processes. Geo- thermal energy does not include systems such as heat pumps that use energy independent of the geothermal source to raise the temperature of the extracted heat.
high efficacy lamps.LEDs, Compact fluorescent lamps, T-5 or smaller diameter linear fluorescent lamps, or lamps with a minimum efficacy of:
1. 60 lumens per watt for lamps over 40 watts,
2. 50 lumens per watt for lamps over 15 watts to 40 watts, and
3. 40 lumens per watt for lamps 15 watts or less.high-speed door: a non-swinging door used primarily to facilitate vehicular access or material transportation, and having an automatic closing device with an opening rate of not less than 32 in./s (810 mm/s) and a closing rate of not less than 24 in./s (610 mm/s).
lighting zone (LZ): an area defining limitations for outdoor lighting.
LZ0: undeveloped areas within national parks, state parks, forest land, rural areas, and other undeveloped areas as defined by the AHJ.
LZ1: developed areas of national parks, state parks, forest land, and rural areas.
LZ2: areas predominantly consisting of residential zoning, neighborhood business districts, light industrial with limited night time use, and residential mixed-use areas.
LZ3: all areas not included in LZ0, LZ1, LZ2, or LZ4.
LZ4: high-activity commercial districts in major metropolitan areas as designated by the local jurisdiction.
networked guest-room control system: an energy management control system, accessible from the hotel/motel front desk or other central location, that is capable of identifying reserved rooms according to a timed schedule and is capable of controlling each hotel/motel guest room separately.
on-site renewable energy system: photovoltaic, solar thermal, geothermal energy, biogas, wastewater thermal and wind systems used to generate energy and located on the building project.
owner: as term is defined in Section 202, Title 12-A DCMR.
owner's project requirements (OPR): a written document that details the functional requirements of a project and the expectations of how it will be used and operated. These include project goals, measurable performance criteria, cost considerations, benchmarks, success criteria, and supporting information.
Strike the definitions of "performance rating method" and "rating authority" in ASHRAE 90.1 and insert new definitions in their place in the Energy Conservation Code-Commercial Provisions to read as follows:
performance rating method: a calculation procedure that generates an index of merit for the performance of building designs that substantially exceeds the energy efficiency levels required by this standard or when using the performance rating method as an alternative path for minimum standard compliance in accordance with Section 4.2.1.1.
rating authority: the organization, building official, or agency that adopts, enforces, or sanctions use of this rating methodology.
Insert the following new definitions in Section 3.2 of ASHRAE 90.1 in the Energy Conservation Code-Commercial Provisions to read as follows:
thermal barrier: the boundary between conditioned and unconditioned space which does not contain thermal bridges.
thermal bridge: part of a building's conditioned envelope which spans between the conditioned and unconditioned space, has an R-value of 1.5 per inch or less, and is not otherwise insulated along the one-dimensional conductive heat transfer pathway of less than R-3/inch for 1 inch. For the purposes of this definition, fenestration is not counted as a thermal bridge.
verification: the process by which specific documents, components, equipment, assemblies, systems, and interfaces among systems are confirmed to comply with the criteria described in the owner's project requirements. (See owner's project requirements)
water factor (WF):
a. clothes washer (residential and commercial): the quantity of water in gallons (liters) used to wash each cubic foot (cubic meter) of machine capacity.
b. residential dishwasher: the quantity of water use in gallons (liters) per full machine wash and rinse cycle.
D.C. Mun. Regs. tit. 12, 12-I3.2